BuildingCensus
A

Basalt West Seattle

Multifamily Housing in Seattle, WA · 4205 SW GENESEE ST · 98116

ENERGY STAR score
99
band A · 2025
Site EUI
34.8
kBtu/ft²
GHG emissions
33
tCO₂e
GHG intensity
0.8
kgCO₂e/ft²
Floor area
50,203
sq ft
Year built
2023
vintage
◆ Loading map…
85–10070–8455–691–54
This entry + 6 nearby

Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025

Benchmarking record

FieldValue
ENERGY STAR score99 (band A)
Site EUI34.8 kBtu/ft²
Source EUI74.5 kBtu/ft²
GHG emissions33 tCO₂e
GHG intensity0.8 kgCO₂e/ft²
Electricity258,103 kWh
Natural gas5,315 therms
Gross floor area50,203 sq ft
Source recordseattle:52070:2025

Compliance context

Seattle Energy Benchmarking Ordinance (SMC 22.920)

Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
4205 SW GENESEE ST
State
Washington
ZIP
98116
Coordinates
47.56455, -122.38587

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

Frequently asked questions

What is Basalt West Seattle's energy grade?

Basalt West Seattle scores 99 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does Basalt West Seattle use?

Its 2025 site energy-use intensity was 34.8 kBtu/ft² (74.5 kBtu/ft² source) across 50,203 sq ft, including 258,103 kWh of electricity and 5,315 therms of natural gas.

What are Basalt West Seattle's carbon emissions?

Basalt West Seattle reported 33 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2025. Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.

Working with Seattle building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: Building Energy Benchmarking disclosure, record seattle:52070:2025.